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9XCite ‐ PKG ‐ R? ? RS ‐ 232/485 ? RF ? Modem ? – ? Product ? Manual ? v2.1 ? [2007.01.04]
1.3. External Interface
1-01a. Power Switch
Figure ? 1 ‐ 01. Front ? View
Move Power Switch to the ON (up) position to power the XCite RS-
232/485 RF Modem.
1-01b. I/O & Power LEDs
LEDs indicate modem activity as follows:
Yellow (top LED) = Serial Data Out (to host)
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (Red light is on when
powered; it pulses on/off briefly during RF transmission.)
1 ‐ 01a. Power
Switch
1 ‐ 01b. LEDs:
Yellow ? (top)
Green ? (middle)
Red ? (bottom)
1 ‐ 01c. DB ‐ 9
Serial Port
1 ‐ 01d. Power
Connector
1-01c. DB-9 Serial Port
Standard female RS-232 (DB-9) DCE connector - Port is also used for
RS-485 and RS-422 connections.
1-01d. Power Connector*
7-18 VDC Power Connector (Center positive, 5.5/2.1 mm) - Power
can also be supplied through Pin 9 of the serial port.
1-02a. DIP Switch
1 ‐ 02a. ? DIP
Figure ? 1 ‐ 02. Back ? View
1 ‐ 02b. Configuration
Switch
DIP Switch automatically configures the XCite Module to operate in
different modes. Each time the RF modem is powered-on, intelligence
on the XIB-R interface board programs the embedded module accord-
ing to the positions of the DIP Switch. [See the figure below for DIP
Switch settings.]
In cases where AT Commands should not be sent each time the RF
Modem is powered on, the processor must be disabled by populating
J7 on the interface board. [See "Automatic DIP Switch Configura-
tions" section for more information].
1-02b. Config (Configuration) Switch
Switch
1 ‐ 02c. Antenna
Port
Configuration Switch provides an alternate way to enter "AT Com-
mand Mode". To enter "AT Command Mode" at the RF modem's
default baud rate, hold the Configuration Switch down while powering
on the modem using the Power Switch.
1-02c. Antenna Port
This port is a 50 Ohm RF signal connector for connecting to an RPSMA
(Reverse Polarity SMA) type antenna. The RPSMA has threads on the
outside of a barrel and a male center conductor.
Figure ? 1 ‐ 03. DIP ? Switch ? Settings
? ? 2007 ? MaxStream, ? Inc.
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